Tools

Plan heralds, auras, minions and meta gems: 107 skills with their Spirit cost at every gem level.

Want or avoid modifiers and copy a regex for the in-game search: waystones, tablets and 27 gear classes.

The whole passive tree and all 22 ascendancy trees from the game files: search a stat to light up every node that has it, tap a node for its numbers.

Pick the item you are socketing into and see what each of 305 runes, soul cores and idols does there.